Confused?

In really confused. I'm not sure if my body is just all messed up from being on birth control so long or something else. I took two ovulation test this past week and both were positive about 4 days apart and I know I couldn't have ovulated when I got the first one. But today I started bleeding again with little clots.  So this is the first month that I've even had a period after being off of Depo for over a year. I had a period for 4 days starting on the 7th and then started spotting for 8 days straight then I stopped for 4 days and I'm starting again.. Any ideas ??